Node Offline message

Update. After checking all connections and reboot-no lights on ethernet port (router is not the problem). No light on SSD. Red power light on raspberry pi. Before, I had solid amber light and flashing green on ethernet. Now seems all dead. Any ideas? Will microsd reboot help

I tried to log in to my node this morning and keep getting this message: http://umbrel.local/ is unreachable. umbrel.local’s DNS address could not be found. Diagnosing the problem. Have also tried to connect via ip address through tailscale

I’ve tried rebooting to no avail. Have had node up and running for about 18 months with no issues. Ideas?